Lea And Perrins Worcestershire Sauce Flavour. Since 1837, Lea & Perrins have been making their famous Worcestershire sauce using an expert blend of ingredients to give that unique full flavour. Potatoes, Vegetable Oils (Sunflower, Rapeseed, in varying proportions), Acidity Regulator: Sodium Diacetate, Sugar, Onion Powder, Rice Flour, Acid: Citric Acid, Salt, Flavourings, Sherry Vinegar Powder, Garlic Powder, Spices (Cardomom, Clove, Cayenne, Ginger, Black Pepper), Yeast Extract, Cocoa Powder, Molasses Powder, Tamarind Concentrate.